Attorneys for U.S. Rep. Ron Barber, who was narrowly defeated by Republican Martha McSally in his re-election campaign, want elections officials to reexamine 132 ballots from Pima County that they claimed were improperly tossed.

A Pima County judge on Monday refused a request from Republican congressional candidate Martha McSally to block the counting of some provisional ballots in her undecided 2nd Congressional District race because they lacked the signature of an election worker.

Democratic Rep. Ron Barber needs to pick up at least 180 votes from the final batch of ballots Tuesday if he is to overcome a lead now held by Republican Martha McSally in Arizona's 2nd Congressional District race.

Elections officials in Pima County are set to count ballots that could decide whether incumbent Democrat Ron Barber or Republican Martha McSally wins Arizona's 2nd Congressional District seat.Elections officials in Pima County are set to count ballots that could decide whether incumbent Democrat Ron Barber or Republican Martha McSally wins Arizona's 2nd Congressional District seat.